#66D689 Color
#66D689 is rgb(102, 214, 137) in RGB and hsl(139, 58%, 62%) in HSL. The closest CSS named color is MediumAquamarine. Black text is most readable on this background.
#66D689
HEX
#66D689RGB
rgb(102, 214, 137)HSL
hsl(139, 58%, 62%)HSV
hsv(139, 52%, 84%)OKLCH
oklch(79.1% 0.151 151.7)CMYK
cmyk(52%, 0%, 36%, 16%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66D689 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.82:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text11.54:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66D689 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66D689, useful for hover states, backgrounds, and text variants.